Elevator.



" mjended position, :2

ELEVATGBI.

Applieation filed April 24:, 1912.

Specification of Letters Patent.

Patented July 16, 3912',

Serial Iio. 692,797.

' all whom it may cons-3m:

Be it known that I, CHARLES S. DRISCOLL, a citizen of the United States of America, residing al COUllQi, in the county of Alla gheny Stale-o. Pein'isylvunia, have in vented certain new and useful l mprore- 1316351 18 in Elevators, of which the following; is a specification, r ferencehcing hu d therein to the accompanying dmwing.

This invention relutes to elevators, and the primary object of my invention is :0 provide :1 fluid or air pressure elei'uliod uppuruius that can be advui'itugcously used u cape, a, Waiter lower. a scuilol" painlers end. decorators, as u also uury derrick: for the oil fields, and for u gy rcul many uses that will he sppurenf us the invention is hetter understood,

Another object of invention to provide an GlQVZitOl of ilie chore type lliu-i; lius telescopic guides and prorisiim for relurding the dos: t of lihe cleiuilor purl'iculurly when bouts-i111 a load, us vxmild on llie iii-- stance when u A further oly'c sworn lisli hue uhcvs resulisby an upparuins the is durable nexpensive to inunufuo and. i dly r v n for the purposes for which it intended J'J'ith the she s and other objects in view, the iuvenlion resides in the novel couslruc- 1i urrungemeul oi purls :eci fica lly described :1 ml

"ll n-Ju he had to the Lll'ZlVJlllQJ wherein Figure i is u vertical SQC'iJOIlfil view of ihe Wl'E-li the mndes thereof in an exis a similar View showing the guides collupse and l ig. is a plan of elevstoiz An elevator in accordance with this invention comprises s platform 1 and urrnnged upon said platform u bed. plate 2. The bed plate 2 is eireulur in plun and adjacent to the edges'thereof is provided with a plurality of sockets 3 that have the inner walls li-liereof screw threuded as {it l. Formed inlegrul'with the bed plate 2, are converging conduits 5 that hey the outer ends thereof in comuninicution w' h the sockets The inner ends of the conduiis 5 tiuminute in u chamber and conununicuting with suid chamber is a depending nipple '2' that extends into an opening 8 provided therefor in the Platform 1.-

all

flanges ii. The [hinges 12 limit the open or exteucilcd position of the uprights by re of the collars l1 engaging said Junggcs. The UPPCHUOSL section of such upright is dcsignuicd 13 and is solid with the ends thereof provided with heads llund l5.

The liC-zuli-s 15 oil the uprights urn eonnceicd by an annular bruce ill and the pper ends of rho sections 10 are connected by annular braces 17, the braces 16 and 1.7 preventing the uprights from suggi11g swu i'ing or otherwise moving that would be detrimental or unsafe when the ilpptll'klldfi ms in use, purticulurly when the lll'u'io'l lg my i an tended position. as illi ruled in Fig. 1.

IMountcd upon two opposilcly disposed heads iii of ihe solid sccliou l3 are cross heads l8 :uid' connected to the ends of said cross heads are ilic upper ends of guide cublcs vlil. The lower ends 01 said cables are zitliuclicdljo and wound upon grooved wheels orsl'ieuvss 2O revolubly supported at oppositely disposed sides of the huso section 9 of? an upriglil, and associated with said wheels or sheaves are spiral springs .21 that retain (he cables 1!) nornmlly taut with said springs winding the cables upon the wheels 20 when the u irights are in a lowered or retreated osition.

Tapped into the nipple 7 is the end of a pipe 22- lhu'tis COIlIlEClLil {to an air or fluid supply cylinder suspa'uulciil from the bot tom of ihe plui'furui .l by straps 24. The cylinder has a supply pipe and said cylinder can he charged from a suitable.

pump and air or fluid compressed therein. for instant use. The pipe is provided with u valve 2( \vliereliy the use. of the oil or lluid within the cylinder 23 can be con.- trollcd, and the capacity of the cylinder is such that the telescopic uprights can be extended and remined in an extended posi; lion by the pressure of air or fluid Wlllllll the a-ylinder and within said uprights,

Arranged wuirully of the bed plate is a snake! 2" and mounied in fhis socket is a telescopic elevator upright that has been generally designated 28 said upright being siinilarto iliootliei uprights previously described. Mounted upon the upper end of the solid section 29 of the elevator upright is a cylindrical elevator cage 30 that has the bottom thereof provided with a bearing 31 for a brake shaft 32, said shaft having a hand wheel 33. Attached to the brake shaft 32' and adapted to wind thereon are cables 34 and the outer ends of said cables are attached to frames 35 having the upper and lower ends thereof provided with sets of pins 36 that extend through openings provided therefor in the elevator cage. The outer ends of the pins 36, are connected by parallel cross heads 37 and it is between these cross heads that the innermost cables 19 extend. Revolubly mounted between the cross heads 37 are sheaves 38 that engage the cables. 19. Encircling the pins 36, between the cross heads '37 and the outer walls of the elevator cage 30 are coiled compression springs 39', these springs retaining the pins 36 in a normally extended posit-ion, whereby the sheaves 38 can easily ride against the innermost cables 19. When the cables 34 are wound upon the brake shaft 32, the frames 35 are pulled inwardly thereby shifting the cross heads 37 toward the elevator cage and causing the sheaves to bind against the innermost cable 19 and thereby retard the movement of .the elevator cage 30. Such braking operation is necessary when the cage contains a load and is descending.

, The socket 27 has a connection 40 extending through the chamber 6 into an opening 41 provided therefor in the platform '1, and

tapped into the connection 40 is a pipe 42 that is connected to an air or fluid pressure cylinder 43. The pipe 42. has a valve 44 and the cylinder 43 is connected by pipe 44 to a suitable pump and is suspended below the platform 1 similar to the cylinder The cylinder 43 is charged with air or fluid underpressure sufficient to elevate the cage 3.

In the practice of my invention, I prefer to make the platform 1 part of a vehicle in some instances to make the same detachable, whereby it can be removed from the vehicle and placed upon the ground. In all instances, it is preferable to use a pump in connection with the cylinders 23 and 43, whereby said cylinders can be gradually exhausted as the uprights are lowered or retracted,vand in connection with the elevator upright-.28, it is necessary that the. pump be used in order that the elevator can make several trips, especially when the apparatus is used as a life saving device; The inventlon, however, resides in the telescopic uprights and the cables-thereof that serveeas guides for the telescopic elevator uprights.

For this reason any suitable means can be resorted to for raising and lowering the uprights of the apparatus, and with the entire apparatus made of-strong and durable metal, itis obvious that the same can be safely used.

While in the drawing thereis illustrated a preferred embodiment of the invention, it is to be understood that the structural ele-- ments are susceptible to such variations and modifications as fall within the scopeof the.

appended claims.

W hat I claim is 1. In an elevator, a bed plate, telescopic uprights carried thereby, annular braces connecting said uprights, guide cables carried by oppositely disposed uprights, a tele-" scopic. elevator upright arranged upon said bed plate, an elevator cage carried thereby, braking mechanisms carriedby said elevator cage and adapted to engage said cables and retard the. movementof said elevator cage,

and means arranged below said bed plate for extending said. uprights.

' 2. An elevator, comprising a platform, a bed plate arranged upon said platform, telescopic uprights arranged upon said bedplate, annular braces connecting said uprights,

guide cables carried by said uprights, wheelscarried by the lower ends of said uprights for supporting said cables with said uprights in a retracted position, a telescopic elevator uprightcarried by said bed plate, an elevator cage carried by the upper end of said-upright, a braking mechanism carried by said cage and engagingtwo of said cables for retarding a movement of said cage, and means carried by said platform and adapted to extend all of said uprights. 3. An elevator comprising a telescopic upright, a cage carried by the upper end thereof, telescopic uprights associated with the first mentioned upright, guide cables car ried thereby and coiiperating with said uprights in guiding said cage, and means engaging said cables and operable from said cage for retarding a movement thereof.

In testimony whereof I aflix my'signature in the presenceof two Witnesses.

CHARLES S. DRISCOLL. 'Witnesses:

ALVIN D. Felon, Fran E; WYLIE.

I Copies of this patent maybe obtained for five cents been, by addressing the Commissioner of Fatents,

" Washington, I). 0.

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